Good discussion, particularly relevant to anyone whom has sailed at Lake George. Would have been nice to name the various people who have set the record over the years.

If you have used a GPS / watch to track your distance, 40km distance in an hour is achievable (provided there is good wind obviously). But it not easy ie: more than 22kn average for the whole hour. Given that gybing typically drops you below 15kn for a bit of time, your board speed is going to need to be at least 24kn on the runs.

... which means "fast gear" is preferred, at the expense of ease-of-use.

Now do that for 10hrs ... say 8am - 5pm... definitely a physical challenge, but the mental challenge comes into it. That would get you less than half way to the 24hr-record.

I’m no long distancer nor foiler. Would I be correct in thinking that foiling would be easier on the body but harder to concentrate when mentally tired ?

This is all very impressive.
I've been wondering if the leaders of the pack consider the foil a use of fair means.
Kato, your reply that it's hard anyway sounds as if you approve of using the foil. Have I got you right?